Description

3,17β-Diacetoxy-3,5-Estradiene is a high-purity steroid intermediate of significant importance in advanced pharmaceutical synthesis. This compound matters as a critical building block for the development of steroidal active pharmaceutical ingredients (APIs) and research compounds, offering a defined chemical structure for precise molecular modifications. It is primarily needed by research institutions, pharmaceutical R&D laboratories, and fine chemical manufacturers engaged in the production of hormone-based therapeutics and novel chemical entities.

Application

• Pharmaceutical Intermediate: A key precursor in the multi-step synthesis of steroidal drugs and hormonal agents.
• Research & Development: Used in academic and industrial laboratories for investigating new synthetic pathways and biological activities of steroid derivatives.
• Fine Chemical Synthesis: Serves as a specialized building block for creating custom steroidal compounds with targeted properties.
• Reference Standard: Can be utilized as an analytical standard for quality control and method development in pharmaceutical analysis.

Basic Information

Product Name	3,17β-Diacetoxy-3,5-Estradiene
CAS No.	4999-76-2
Molecular Formula	C22H28O4
Molecular Weight	356.46 g/mol
Synonyms	3,17β-Diacetoxyestra-3,5-diene; Estra-3,5-diene-3,17β-diol diacetate; 3,5-Estradiene-3,17β-diol diacetate; 3,17β-Diacetoxy-δ3,5-estradiene; 3,17β-Diacetoxyestra-3,5-dien-17β-ol; 3,5-Estradien-3,17β-diol, diacetate; (8R,9S,13S,14S,17S)-3,17-diacetoxy-13-methyl-6,7,8,9,11,12,14,15,16,17-decahydrocyclopenta[a]phenanthrene
EINECS	Contact for details

Quality Control

Our 3,17β-Diacetoxy-3,5-Estradiene is manufactured under strict quality management systems. Each batch undergoes rigorous analytical testing to ensure identity, purity, and consistency, meeting the high standards required for pharmaceutical R&D and fine chemical synthesis. A comprehensive Certificate of Analysis (COA) detailing purity, assay, and impurity profiles is provided with every shipment.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, dry, and well-ventilated area at controlled room temperature (typically 15-25°C). Keep away from incompatible materials.

Specification

Item	Specification
Appearance	White to off-white crystalline powder
Identification (IR)	Conforms to structure
Assay (HPLC)	≥ 98.0%
Related Substances (HPLC)	Total impurities ≤ 2.0%
Loss on Drying	≤ 0.5%
Residue on Ignition	≤ 0.1%

Note: Specifications can be tailored. Please contact us for the detailed technical data sheet of a specific grade.